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Dispersive Contribution of ρ(1450,1700) Decays and X(1576) |
| ZHANG Bo;LIU Xiang;ZHU Shi-Lin |
| Department of Physics, Peking University, Beijing 100871 |
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| Cite this article: |
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ZHANG Bo, LIU Xiang, ZHU Shi-Lin 2007 Chin. Phys. Lett. 24 2537-2539 |
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Abstract We study whether the broad enhancement X(1576) arises from the final
state interaction (FSI) of ρ(1450,1700)→ρ+ρ-→K+K- decays. Both the absorptive and dispersive contributions of the above amplitudes are considered since the intermediate states are very close to ρ(1450,1700). The same mechanism leads to a similar enhancement around 1580MeV in the π+π- spectrum in the J/ψ→π0π+π- channel, which can be used to test whether X(1576) can be ascribed to the FSI effect of ρ(1450,1700)→ρ+ρ-.
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| Keywords:
12.40.Nn
13.75.Lb
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Received: 22 May 2007
Published: 16 August 2007
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| PACS: |
12.40.Nn
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(Regge theory, duality, absorptive/optical models)
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13.75.Lb
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(Meson-meson interactions)
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[1] Ablikim M et al (BES collaboration) 2006 Phys. Rev.Lett. 97 142002
[2]Guo F K and Shen P N 2006 Phys. Rev. D 74 097503
[3]Karliner M and Lipkin H J Preprint arXiv:hep-ph/0607093
[4]Wang Z G and Wang S L 2006 Chin. Phys. Lett. 23 3208
[5]Ding G J and Yan M L 2006 Phys. Lett. B 643 33
[6]Zhang A L, Huang T and Steele T G Preprint arXiv: hep-ph/0612146
[7] Li B A Preprint arXiv:hep-ph/0701159
[8]Isgur N, Maltman K, Weinstein J and Barnes T 1990 Phys.Rev. Lett. 64 161 Locher M P, Markusin V E and Zheng H Q Report No PSI-PR-96-13(unpublished) Lipkin H J 1984 Nucl. Phys. B 244 147 Lipkin H J 1986 Phys. Lett. B 179 278 Lipkin H J 1987 Nucl. Phys. B 291 720
[9]Liu X, Zhang B, Shen L L and Zhu S L 2007 Phys. Rev. D 75 074017
[10]Bugg D V 2004 Phys. Lett. B 598 8
[11]Meng C and Chao K T 2007 Phys. Rev. D 75 114002
[12]Liu X, Zhang B and Zhu S L 2007 Phys. Lett. B 645 185
[13]Cheng H Y, Chua C K and Soni A 2005 Phys. Rev. D 71 014030
[14]Zhao Q, Zou B S and Ma Z B 2005 Phys. Lett. B 63122 Zhao Q 2006 Phys. Lett. B 636 197
[15]Pennington M R and Wilson D J Preprint arXiv:0704.3384v1
[hep-ph]
[16] Yao W M et al (Particle Data Group) 2006 J. Phys. G 33 1
[17]Zhao Q and Zou B S 2006 Phys. Rev. D 74 114025 |
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